sslscan is a very efficient C program that allows you to detect SSL versions & cipher suites (including TLS version checker) and also checks for vulnerabilities like Heartbleed and POODLE.

A useful tool to keep around after you’ve set-up a server to check the SSL configuration is robust. Especially if you’re in an Internet limited environment and you can’t use an Online tool like the excellent Qualsys SSL Labs – https://www.ssllabs.com/ssltest/

sslscan Features – TLS Version Checker

sslscan has fairly complete support to detect all versions and ciphers for both SSL and TLS, including vulnerabilities (like Heartbleed and Poodle).